It looks like a photo gallery, but it's for customer testimonials. When I select "add images", I can't find quote icons to add, I only see photographs. It's also different from a photo gallery in that the caption/testimonial is in-between the two images.

I see that it is a different account. That is why I didn't notice. This is a photo gallery more than anything. Each image you add becomes 1 tab. If you want to do this better, then you can remove that element and add a tabbed container. You can easily add new tabs and add multiple different elements inside each tab. So you can add a text box and the two images of your quotes.